Arduino Forum

Products => The Arduino Starter Kit and Basic Kit => Topic started by: mateuyabar on Sep 17, 2014, 01:57 pm

Title: Project 9 - problems with motor
Post by: mateuyabar on Sep 17, 2014, 01:57 pm
I'm trying to make project 9.

When I press the switch the motor starts.
When I unpress it, the motors continues running decreasing its speed really slowly. Even if I stop the motor (with a finger), it will start again.
If I unplug the battery the motor stops directly.

So, it seas that the mosfet, when I send LOW to gate, the connectivity between the drain and the soruce, instead of stopping, is decreasing gradually.

Any thoughts on what may be happening?

Thanks.
Title: Re: Project 9 - problems with motor
Post by: Hackscribble on Sep 17, 2014, 02:12 pm
Hi mateuyabar

What type of MOSFET are you using?  What is its part number?

Regards

Ray
Title: Re: Project 9 - problems with motor
Post by: mateuyabar on Sep 17, 2014, 02:20 pm
I bought the Arduino Kit,
The mosfet is: IRF520 http://arduino.cc/documents/datasheets/MOS-irf520npbf.pdf
Title: Re: Project 9 - problems with motor
Post by: spikula on Jan 17, 2015, 08:01 am
Hi, I am having the exact same problem, mateuyabar.  Did you ever get this to work right, or at least figure out why it is doing what it is doing?